1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
23 - av_basename and av_dirname
24 - adobe and limelight publisher authentication in RTMP
25 - VDPAU hardware acceleration through normal hwaccel
30 - ashowinfo audio filter
31 - 24-bit FLAC encoding
33 - deprecated the avconv -vol option. the volume filter is to be used instead.
34 - multi-channel ALAC encoding up to 7.1
35 - TAK demuxer, parser, and decoder
36 - adaptive frame-level multithreading for H.264
40 - metadata (INFO tag) support in WAV muxer
41 - support for building DLLs using MSVC
42 - remove avserver daemon mode
43 - support building on the Plan 9 operating system
44 - ffv1: support version 1.3
49 - XWD encoder and decoder
50 - Support for fragmentation in the mov/mp4 muxer
51 - ISMV (Smooth Streaming) muxer
52 - CDXL demuxer and decoder
53 - Apple ProRes encoder
54 - Sun Rasterfile Encoder
56 - ID3v2 attached pictures reading and writing
57 - WMA Lossless decoder
59 - RealAudio Lossless decoder
61 - drop support for avconv without libavfilter
62 - add libavresample audio conversion library
63 - audio filters support in libavfilter and avconv
67 - avprobe output is now standard INI or JSON. The old format can still
70 - channelsplit audio filter
71 - RTMPT protocol support
72 - iLBC encoding/decoding via libilbc
73 - Microsoft Screen 1 decoder
75 - audio channel mapping filter
76 - Microsoft ATC Screen decoder
78 - TechSmith Screen Codec 2 decoder
79 - AAC encoding via libfdk-aac
80 - Microsoft Expression Encoder Screen decoder
81 - RTMPS protocol support
82 - RTMPTS protocol support
83 - JPEG 2000 encoding support through OpenJPEG
84 - G.723.1 demuxer and decoder
85 - RTMPE protocol support
86 - RTMPTE protocol support
87 - Canopus Lossless Codec decoder
88 - avconv -shortest option is now per-output file,
89 -pass and -passlogfile are now per-output stream
91 - Microsoft Screen 2 decoder
92 - RTP depacketization of JPEG
93 - Smooth Streaming live segmenter muxer
94 - RTP packetization of JPEG
95 - Opus decoder and encoder using libopus
96 - remove -same_quant, it hasn't worked for years
97 - support for building with MSVC
108 - Automatic thread count based on detection number of (available) CPU cores
109 - Deprecate libpostproc. If desired, the switch --enable-postproc will
110 enable it but it may be removed in a later Libav release.
111 - rv34: frame-level multi-threading
112 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
118 - Flash Screen Video 2 decoder
119 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
120 - ffmpeg deprecated, added avconv, which is almost the same for now, except
121 for a few incompatible changes in the options, which will hopefully make them
122 easier to use. The changes are:
123 * The options placement is now strictly enforced! While in theory the
124 options for ffmpeg should be given in [input options] -i INPUT [output
125 options] OUTPUT order, in practice it was possible to give output options
126 before the -i and it mostly worked. Except when it didn't - the behavior was
127 a bit inconsistent. In avconv, it is not possible to mix input and output
128 options. All non-global options are reset after an input or output filename.
129 * All per-file options are now truly per-file - they apply only to the next
130 input or output file and specifying different values for different files
131 will now work properly (notably -ss and -t options).
132 * All per-stream options are now truly per-stream - it is possible to
133 specify which stream(s) should a given option apply to. See the Stream
134 specifiers section in the avconv manual for details.
135 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
136 sense that they're specified after the output filename instead of before,
137 like all other options. In avconv this irregularity is removed, all options
138 apply to the next input or output file.
139 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
140 irregular and highly confusing, they were also redundant. In avconv the -map
141 option will create new streams in the output file and map input streams to
142 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
143 each stream in the first input file.
144 * The -map option now has slightly different and more powerful syntax:
145 + Colons (':') are used to separate file index/stream type/stream index
146 instead of dots. Comma (',') is used to separate the sync stream instead
147 of colon.. This is done for consistency with other options.
148 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
149 output stream from the third input audio stream.
150 + Omitting the stream index now maps all the streams of the given type,
151 not just the first. E.g. -map 0:s creates output streams for all the
152 subtitle streams in the first input file.
153 + Since -map can now match multiple streams, negative mappings were
154 introduced. Negative mappings disable some streams from an already
155 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
156 all the stream in the first input file, except for the second audio
158 * There is a new option -c (or -codec) for choosing the decoder/encoder to
159 use, which allows to precisely specify target stream(s) consistently with
160 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
161 libvorbis sets the codec for the first audio stream and -c copy copies all
162 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
164 * It is now possible to precisely specify which stream should an AVOption
165 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
166 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
167 syntax is deprecated and will stop working soon.
168 * -map_chapters now takes only an input file index and applies to the next
169 output file. This is consistent with how all the other options work.
170 * -map_metadata now takes only an input metadata specifier and applies to
171 the next output file. Output metadata specifier is now part of the option
172 name, similarly to the AVOptions/map/codec feature above.
173 * -metadata can now be used to set metadata on streams and chapters, e.g.
174 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
175 This made -vlang/-alang/-slang options redundant, so they were removed.
176 * -qscale option now uses stream specifiers and applies to all streams, not
177 just video. I.e. plain -qscale number would now apply to all streams. To get
178 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
179 and -aq is now an alias for -q:a.
180 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
181 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
182 * -itsscale option now uses stream specifiers, so its argument is only the
184 * -intra option was removed, use -g 0 for the same effect.
185 * -psnr option was removed, use -flags +psnr for the same effect.
186 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
187 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
188 * -vtag/-atag/-stag options are now aliases to the new -tag option.
190 - Windows Media Image decoder
194 - libcdio-paranoia input device for audio CD grabbing
196 - Apple ProRes decoder
197 - CELT in Ogg demuxing
198 - VC-1 interlaced decoding
199 - lut, lutrgb, and lutyuv filters
202 - Speex encoding via libspeex
203 - 4:2:2 H.264 decoding support
204 - 4:2:2 and 4:4:4 H.264 encoding with libx264
205 - Pulseaudio input device
206 - replacement Indeo 3 decoder
207 - TLS/SSL and HTTPS protocol support
208 - AVOptions API rewritten and documented
209 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
210 AVCodecContext deprecated. Codec private options should be used instead.
211 - Properly working defaults in libx264 wrapper, support for native presets.
212 - Encrypted OMA files support
213 - Discworld II BMV decoding support
215 - OS X Video Decoder Acceleration (VDA) support
216 - CRI ADX audio format muxer and demuxer
217 - Playstation Portable PMP format demuxer
218 - PCM format support in OMA demuxer
220 - Dxtory capture format decoder
221 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
223 - Simple segmenting muxer
230 - E-AC-3 audio encoder
231 - ac3enc: add channel coupling support
232 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
233 - H.264/MPEG frame-level multithreading
234 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
235 - 4:4:4 H.264 decoding support
236 - 10-bit H.264 optimizations for x86
237 - bump libswscale for recently reported ABI break
242 - VP8 frame-level multithreading
243 - NEON optimizations for VP8
244 - removed a lot of deprecated API cruft
245 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
247 - SMPTE 302M AES3 audio decoder
248 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
249 - 9bit and 10bit per sample support in the H.264 decoder
254 - WebM support in Matroska de/muxer
255 - low overhead Ogg muxing
257 - VP8 de/encoding via libvpx
258 - Demuxer for On2's IVF format
259 - Pictor/PC Paint decoder
261 - libfaad2 wrapper removed
262 - DTS-ES extension (XCh) decoding support
264 - RTSP tunneling over HTTP
265 - RTP depacketization of SVQ3
266 - -strict inofficial replaced by -strict unofficial
267 - ffplay -exitonkeydown and -exitonmousedown options added
268 - native GSM / GSM MS decoder
269 - RTP depacketization of QDM2
270 - ANSI/ASCII art playback system
271 - Lego Mindstorms RSO de/muxer
272 - SubRip subtitle file muxer and demuxer
273 - Chinese AVS encoding via libxavs
274 - ffprobe -show_packets option added
275 - RTP packetization of Theora and Vorbis
276 - RTP depacketization of MP4A-LATM
277 - RTP packetization and depacketization of VP8
279 - Apple HTTP Live Streaming demuxer
282 - G.722 ADPCM audio encoder/decoder
285 - frei0r wrapper filter
286 - change crop filter syntax to width:height:x:y
287 - make the crop filter accept parametric expressions
288 - make ffprobe accept AVFormatContext options
291 - Demuxer for Leitch/Harris' VR native stream format (LXF)
292 - RTP depacketization of the X-QT QuickTime format
293 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
295 - ffmpeg -crop* options removed
296 - transpose filter added
297 - ffmpeg -force_key_frames option added
298 - demuxer for receiving raw rtp:// URLs without an SDP description
299 - single stream LATM/LOAS decoder
300 - setpts filter added
301 - Win64 support for optimized x86 assembly functions
302 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
303 - ASS subtitle encoder and decoder
304 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
305 - overlay filter added
306 - rename aspect filter to setdar, and pixelaspect to setsar
308 - Mobotix .mxg demuxer
309 - frei0r source added
310 - hqdn3d filter added
311 - RTP depacketization of QCELP
313 - gradfun filter added
315 - replace the ocv_smooth filter with a more generic ocv filter
316 - Windows Televison (WTV) demuxer
317 - FFmpeg metadata format muxer and demuxer
318 - SubRip (srt) subtitle decoder
319 - floating-point AC-3 encoder added
321 - ffmpeg -copytb option added
323 - Wing Commander IV movies decoder added
325 - Bink version 'b' audio and video decoder
326 - Bitmap Brothers JV playback system
327 - Apple HTTP Live Streaming protocol handler
328 - sndio support for playback and record
329 - Linux framebuffer input device added
330 - Chronomaster DFA decoder
331 - Mobotix MxPEG decoder
332 - AAC encoding via libvo-aacenc
333 - AMR-WB encoding via libvo-amrwbenc
335 - fieldorder video filter added
340 - PB-frame decoding for H.263
341 - deprecated vhook subsystem removed
342 - deprecated old scaler removed
344 - Alpha channel scaler
346 - RTP packetization of H.263
347 - RTP packetization of AMR
348 - RTP depacketization of Vorbis
349 - CorePNG decoding support
350 - Cook multichannel decoding support
351 - introduced avlanguage helpers in libavformat
352 - 8088flex TMV demuxer and decoder
353 - per-stream language-tags extraction in asfdec
354 - V210 decoder and encoder
355 - remaining GPL parts in AC-3 decoder converted to LGPL
357 - SoX native format muxer and demuxer
358 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
360 - Electronic Arts Madcow decoder
361 - DivX (XSUB) subtitle encoder
362 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
363 - experimental AAC encoder
364 - RTP depacketization of ASF and RTSP from WMS servers
365 - RTMP support in libavformat
366 - noX handling for OPT_BOOL X options
368 - IEC-61937 compatible Muxer
370 - Bluray (PGS) subtitle decoder
371 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
373 - Core Audio Format demuxer
375 - MD STUDIO audio demuxer
376 - RF64 support in WAV demuxer
377 - MPEG-4 Audio Lossless Coding (ALS) decoder
378 - -formats option split into -formats, -codecs, -bsfs, and -protocols
380 - CDG demuxer and decoder
382 - Auravision Aura 1 and 2 decoders
383 - Deluxe Paint Animation playback system
385 - Adobe Filmstrip muxer and demuxer
386 - RTP depacketization of H.263
387 - Bink demuxer and audio/video decoders
388 - enable symbol versioning by default for linkers that support it
389 - IFF PBM/ILBM bitmap decoder
392 - RTP depacketization of AMR
398 - Kega Game Video (KGV1) decoder
399 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
400 - RTP depacketization of Theora
401 - HTTP Digest authentication
402 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
403 - Psygnosis YOP demuxer and video decoder
404 - spectral extension support in the E-AC-3 decoder
405 - unsharp video filter
406 - RTP hinting in the mov/3gp/mp4 muxer
407 - Dirac in Ogg demuxing
408 - seek to keyframes in Ogg
409 - 4:2:2 and 4:4:4 Theora decoding
410 - 35% faster VP3/Theora decoding
411 - faster AAC decoding
412 - faster H.264 decoding
413 - RealAudio 1.0 (14.4K) encoder
418 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
419 - TechSmith Camtasia (TSCC) video decoder
420 - IBM Ultimotion (ULTI) video decoder
421 - Sierra Online audio file demuxer and decoder
422 - Apple QuickDraw (qdrw) video decoder
423 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
424 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
425 - Miro VideoXL (VIXL) video decoder
426 - H.261 video encoder
428 - Nullsoft Video (NSV) file demuxer
429 - Shorten audio decoder
431 - Apple Lossless Audio Codec (ALAC) decoder
432 - Winnov WNV1 video decoder
433 - Autodesk Animator Studio Codec (AASC) decoder
434 - Indeo 2 video decoder
435 - Fraps FPS1 video decoder
436 - Snow video encoder/decoder
437 - Sonic audio encoder/decoder
438 - Vorbis audio decoder
439 - Macromedia ADPCM decoder
440 - Duck TrueMotion 2 video decoder
441 - support for decoding FLX and DTA extensions in FLIC files
442 - H.264 custom quantization matrices support
443 - ffserver fixed, it should now be usable again
445 - Real Cooker audio decoder
446 - TrueSpeech audio decoder
447 - WMA2 audio decoder fixed, now all files should play correctly
448 - RealAudio 14.4 and 28.8 decoders fixed
450 - build system improvements
451 - tabs and trailing whitespace removed from the codebase
452 - CamStudio video decoder
453 - AIFF/AIFF-C audio format, encoding and decoding
454 - ADTS AAC file reading and writing
455 - Creative VOC file reading and writing
456 - American Laser Games multimedia (*.mm) playback system
457 - Zip Motion Blocks Video decoder
458 - improved Theora/VP3 decoder
459 - True Audio (TTA) decoder
460 - AVS demuxer and video decoder
462 - Smacker demuxer and decoder
463 - NuppelVideo/MythTV demuxer and RTjpeg decoder
465 - MPEG-2 intra VLC support
466 - MPEG-2 4:2:2 encoder
467 - Flash Screen Video decoder
469 - Chinese AVS decoder
472 - VC-1/WMV3/WMV9 video decoder
475 - VMware video decoder
478 - WavPack lossless audio decoder
479 - Targa (.TGA) picture decoder
480 - Vorbis audio encoder
481 - Delphine Software .cin demuxer/audio and video decoder
482 - Tiertex .seq demuxer/video decoder
484 - TIFF picture encoder and decoder
485 - GIF picture decoder
486 - Intel Music Coder decoder
487 - Zip Motion Blocks Video encoder
489 - Flash Screen Video encoder
490 - Theora encoding via libtheora
493 - GSM-MS encoder and decoder
495 - DXA demuxer and decoder
497 - Gamecube movie (.THP) playback system
498 - Blackfin optimizations
499 - Interplay C93 demuxer and video decoder
500 - Bethsoft VID demuxer and video decoder
503 - V.Flash PTX decoder
504 - RoQ muxer, RoQ audio encoder
505 - Renderware TXD demuxer and decoder
506 - extern C declarations for C++ removed from headers
507 - sws_flags command line option
511 - OS/2 support removed and restored again
514 - additional SPARC (VIS) optimizations
516 - slice-based parallel H.264 decoding
517 - Monkey's Audio demuxer and decoder
518 - AMV audio and video decoder
520 - H.264 PAFF decoding
521 - Nellymoser ASAO decoder
522 - Beam Software SIFF demuxer and decoder
523 - libvorbis Vorbis decoding removed in favor of native decoder
524 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
525 - Ogg (Theora, Vorbis and FLAC) muxer
526 - The "device" muxers and demuxers are now in a new libavdevice library
527 - PC Paintbrush PCX decoder
528 - Sun Rasterfile decoder
529 - TechnoTrend PVA demuxer
530 - Linux Media Labs MPEG-4 (LMLM4) demuxer
531 - AVM2 (Flash 9) SWF muxer
532 - QT variant of IMA ADPCM encoder
534 - iPod/iPhone compatible mp4 muxer
536 - MSN TCP Webcam stream demuxer
537 - RL2 demuxer / decoder
540 - non-recursive Makefiles
542 - MAXIS EA XA (.xa) demuxer / decoder
546 - Electronic Arts CMV decoder
547 - Motion Pixels Video decoder
548 - Motion Pixels MVI demuxer
549 - removed animated GIF decoder/demuxer
550 - D-Cinema audio muxer
551 - Electronic Arts TGV decoder
552 - Apple Lossless Audio Codec (ALAC) encoder
554 - floating point PCM encoder/decoder
556 - DV100 AKA DVCPRO HD decoder and demuxer
557 - E-AC-3 support added to AC-3 decoder
558 - Nellymoser ASAO encoder
559 - ASS and SSA demuxer and muxer
560 - liba52 wrapper removed
561 - SVQ3 watermark decoding support
562 - Speex decoding via libspeex
563 - Electronic Arts TGQ decoder
565 - QCELP / PureVoice decoder
567 - hybrid WavPack support
568 - R3D REDCODE demuxer
569 - ALSA support for playback and record
570 - Electronic Arts TQI decoder
571 - OpenJPEG based JPEG 2000 decoder
572 - NC (NC4600) camera file demuxer
573 - Gopher client support
575 - generic metadata API
580 - DV encoder, DV muxer
581 - Microsoft RLE video decoder
582 - Microsoft Video-1 decoder
583 - Apple Animation (RLE) decoder
584 - Apple Graphics (SMC) decoder
585 - Apple Video (RPZA) decoder
587 - Sega FILM (CPK) file demuxer
588 - Westwood multimedia support (VQA & AUD files)
589 - Id Quake II CIN playback support
591 - FLIC playback support
592 - RealVideo 2.0 (RV20) decoder
593 - Duck TrueMotion v1 (DUCK) video decoder
594 - Sierra VMD demuxer and video decoder
595 - MSZH and ZLIB decoder support
599 - rate distortion optimal cbp support
600 - rate distorted optimal ac prediction for MPEG-4
601 - rate distorted optimal lambda->qp support
602 - AAC encoding with libfaac
603 - Sunplus JPEG codec (SP5X) support
604 - use Lagrange multipler instead of QP for ratecontrol
605 - Theora/VP3 decoding support
606 - XA and ADX ADPCM codecs
607 - export MPEG-2 active display area / pan scan
608 - Add support for configuring with IBM XLC
609 - floating point AAN DCT
610 - initial support for zygo video (not complete)
612 - new audio/video parser API
614 - av_read_frame() and av_seek_frame() support
615 - missing last frame fixes
616 - seek by mouse in ffplay
617 - noise reduction of DCT coefficients
618 - H.263 OBMC & 4MV support
619 - H.263 alternative inter vlc support
621 - H.263 slice structured mode
622 - interlaced DCT support for MPEG-2 encoding
623 - stuffing to stay above min_bitrate
624 - MB type & QP visualization
625 - frame stepping for ffplay
626 - interlaced motion estimation
627 - alternate scantable support
628 - SVCD scan offset support
631 - quantizer noise shaping
632 - G.726 ADPCM audio codec
634 - multithreaded/SMP motion estimation
635 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
636 - multithreaded/SMP decoding for MPEG-2
638 - Metrowerks CodeWarrior suppport
639 - H.263+ custom pcf support
640 - nicer output for 'ffmpeg -formats'
642 - SGI image format, encoding and decoding
643 - H.264 loop filter support
644 - H.264 CABAC support
645 - nicer looking arrows for the motion vector visualization
646 - improved VCD support
647 - audio timestamp drift compensation
648 - MPEG-2 YUV 422/444 support
649 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
650 - better image scaling
652 - correctly interleave packets during encoding
653 - VIS optimized motion compensation
654 - intra_dc_precision>0 encoding support
655 - support reuse of motion vectors/MB types/field select values of the source video
656 - more accurate deblock filter
658 - many optimizations and bugfixes
659 - FunCom ISS audio file demuxer and according ADPCM decoding
664 - MPEG-2 video encoding (Michael)
665 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
666 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
668 - Xan DPCM audio decoder (Mario Brito)
669 - Interplay MVE playback subsystem (Mike Melanson)
670 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
675 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
676 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
677 - current version now also compiles with older GCC (Fabrice)
678 - 4X multimedia playback system including 4xm file demuxer (Mike
679 Melanson), and 4X video and audio codecs (Michael)
680 - Creative YUV (CYUV) decoder (Mike Melanson)
681 - FFV1 codec (our very simple lossless intra only codec, compresses much better
682 than HuffYUV) (Michael)
683 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
684 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
685 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
686 - ffplay has been replaced with a newer version which uses SDL (optionally)
687 for multiplatform support (Fabrice)
688 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
690 - AMR format has been added (Johannes Carlsson)
691 - 3GP support has been added (Johannes Carlsson)
692 - VP3 codec has been added (Mike Melanson)
693 - more MPEG-1/2 fixes
694 - better multiplatform support, MS Visual Studio fixes (various)
695 - AltiVec optimizations (Magnus Damn and others)
696 - SH4 processor support has been added (BERO)
697 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
698 - VOB streaming support (Brian Foley)
699 - better MP3 autodetection (Andriy Rysin)
700 - qpel encoding (Michael)
701 - 4mv+b frames encoding finally fixed (Michael)
702 - chroma ME (Michael)
703 - 5 comparison functions for ME (Michael)
704 - B-frame encoding speedup (Michael)
705 - WMV2 codec (unfinished - Michael)
706 - user specified diamond size for EPZS (Michael)
707 - Playstation STR playback subsystem, still experimental (Mike and Michael)
708 - ASV2 codec (Michael)
709 - CLJR decoder (Alex)
711 .. And lots more new enhancements and fixes.
716 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
718 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
719 - fix quantization bug in AC3 encoder
720 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
721 - added prototype ffplay program
722 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
723 - bug fix on MCBPC tables of H.263 (Juanjo)
724 - bug fix on DC coefficients of H.263 (Juanjo)
725 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
726 - now we can decode H.263 streams found in QuickTime files (Juanjo)
727 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
728 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
729 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
730 - now H.263 picture size is returned on the first decoded frame (Juanjo)
731 - added first regression tests
732 - added MPEG-2 TS demuxer
733 - new demux API for libav
734 - more accurate and faster IDCT (Michael)
735 - faster and entropy-controlled motion search (Michael)
736 - two pass video encoding (Michael)
737 - new video rate control (Michael)
738 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
739 - great performance improvement of video encoders and decoders (Michael)
740 - new and faster bit readers and vlc parsers (Michael)
741 - high quality encoding mode: tries all macroblock/VLC types (Michael)
742 - added DV video decoder
743 - preliminary RTP/RTSP support in ffserver and libavformat
744 - H.263+ AIC decoding/encoding support (Juanjo)
745 - VCD MPEG-PS mode (Juanjo)
746 - PSNR stuff (Juanjo)
747 - simple stats output (Juanjo)
748 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
753 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
754 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
755 - added configure system (actually a small shell script)
756 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
757 Michael Hipp (temporary solution - waiting for integer only
759 - fixed VIDIOCSYNC interrupt
760 - added Intel H.263 decoding support ('I263' AVI fourCC)
761 - added Real Video 1.0 decoding (needs further testing)
762 - simplified image formats again. Added PGM format (=grey
763 pgm). Renamed old PGM to PGMYUV.
764 - fixed msmpeg4 slice issues (tell me if you still find problems)
765 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
766 - added support for MPlayer interface
767 - added macroblock skip optimization
768 - added MJPEG decoder
769 - added mmx/mmxext IDCT from libmpeg2
770 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
771 <celer at shell.scrypt.net>)
772 - added pixel format conversion layer (e.g. for MJPEG or PPM)
773 - added deinterlacing option
775 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
776 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
777 - Windows porting of file converter
778 - added MJPEG raw format (input/ouput)
779 - added JPEG image format support (input/output)
784 - fixed some std header definitions (Bjorn Lindgren
785 <bjorn.e.lindgren at telia.com>).
786 - added MPEG demuxer (MPEG-1 and 2 compatible).
788 - added prototype RM demuxer
789 - added AC3 decoding (done with libac3 by Aaron Holtzman)
790 - added decoding codec parameter guessing (.e.g. for MPEG, because the
791 header does not include them)
792 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
793 play them (only tested video)
794 - fixed H.263 white bug
795 - fixed phase rounding in img resample filter
796 - add MMX code for polyphase img resample filter
797 - added CPU autodetection
798 - added generic title/author/copyright/comment string handling (ASF and RM
800 - added SWF demux to extract MP3 track (not usable yet because no MP3
802 - added fractional frame rate support
803 - codecs are no longer searched by read_header() (should fix ffserver
809 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
810 - fixed raw yuv output
811 - added motion rounding support in MPEG-4
812 - fixed motion bug rounding in MSMPEG4
813 - added B-frame handling in video core
814 - added full MPEG-1 decoding support
815 - added partial (frame only) MPEG-2 support
816 - changed the FOURCC code for H.263 to "U263" to be able to see the
817 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
818 this +codec ;) (JuanJo).
819 - Halfpel motion estimation after MB type selection (JuanJo)
820 - added pgm and .Y.U.V output format
821 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
823 - added pgmpipe I/O format (original patch from Martin Aumueller
824 <lists at reserv.at>, but changed completely since we use a format
825 instead of a protocol)
830 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
831 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
832 missing. MSMPEG4 support is complete.
833 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
834 can decode ffmpeg MPEGs :-)).
835 - added libavcodec API documentation (see apiexample.c).
836 - fixed image polyphase bug (the bottom of some images could be
838 - added support for non clipped motion vectors (decoding only)
839 and image sizes non-multiple of 16
840 - added support for AC prediction (decoding only)
841 - added file overwrite confirmation (can be disabled with -y)
842 - added custom size picture to H.263 using H.263+ (Juanjo)
847 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
848 of AVI and ASF to DIV3.
849 - added -me option to set motion estimation method
850 (default=log). suppressed redundant -hq option.
851 - added options -acodec and -vcodec to force a given codec (useful for
854 - improved dct_quantize speed
855 - factorized some motion estimation code
860 - removing grab code from ffserver and moved it to ffmpeg. Added
861 multistream support to ffmpeg.
862 - added timeshifting support for live feeds (option ?date=xxx in the
864 - added high quality image resize code with polyphase filter (need
865 mmx/see optimization). Enable multiple image size support in ffserver.
866 - added multi live feed support in ffserver
867 - suppressed master feature from ffserver (it should be done with an
868 external program which opens the .ffm url and writes it to another
870 - added preliminary support for video stream parsing (WAV and AVI half
871 done). Added proper support for audio/video file conversion in
873 - added preliminary support for video file sending from ffserver
874 - redesigning I/O subsystem: now using URL based input and output
876 - added WAV format support
877 - added "tty user interface" to ffmpeg to stop grabbing gracefully
878 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
879 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
880 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
881 - added new motion estimation algorithms, log and phods (Juanjo)
882 - changed directories: libav for format handling, libavcodec for
888 - added stereo in MPEG audio encoder
893 - added 'high quality' mode which use motion vectors. It can be used in
894 real time at low resolution.
895 - fixed rounding problems which caused quality problems at high
896 bitrates and large GOP size
899 version 0.3.2: small fixes
905 version 0.3.1: added avi/divx support
908 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
909 - added sound for flash format (not tested)
912 version 0.3: initial public release